A teenage beauty blogger has become an internet sensation after filming herself going on a brilliant rant about why people should mind their own business.

Sydnie Adams, a 16-year-old YouTuber from New Orleans, Louisiana, took to Twitter over the weekend to share a hilarious video of applying make-up while recalling how a friend tried to shame her for wanting ice cream.

'I am done with the buffoolery. I really am. I truly am,' she says in the clip. 'If I don't ask for your opinion, don't give it to me.'

Hitting back: Sydnie Adams took to Twitter over the weekend to share a video of herself advising people to mind their own business

Sydnie explains that she was talking to a friend when she casually mentioned she wanted ice cream. However, instead of her pal offering to get some with her, Sydnie found herself getting lectured.

'She going to tell me you don't need ice cream cause you been gaining a little weight,' she says.

'Ugh,' she continues with a look of disgust on her face. 'B***h I know you lie. Who asked you that? Who asked you that?'